After complaining about her dull life, shop girl Sally Manvers falls asleep on the roof of her apartment. Drenched from a downpour, Sally awakens and finds the roof entrance locked. She enters the apartment of society woman Mrs. Standish and encounters Mrs. Standish's brother, Walter Arden Savage, opening the safe. Sally protects Savage from a burglar, and after learning that he and his sister plan to steal their jewels to collect insurance money, she agrees to keep quiet if they take her with them to Newport.